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RS Resin Spray GunsNext Generation Guns for Gel Coat and Chop Applications

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A revolution for the FRP industry

Discover the next generation of gel coat and chop gunsInnovations engineered into the Graco RS Resin Spray Gun are sure to make a difference in your production uptime. It’s lightweight. Ergonomic. Designed for tool-less operation and quick blade changes. Fast, easy maintenance too.

Discover how the Graco RS Resin Spray Gun’s revolutionary design and industry-first features can help boost your company’s bottom line.

Change blades in seconds and keep production movingGraco’s innovative new fiberglass cutter is sure to change the way you work. It’s designed so workers can change the blades in less than a minute – significantly less time than traditional cutter designs. In addition, blades and anvils can be changed right on the production line, resulting in more uptime.

Graco RS Chop Gun with Cutter

Lightweight, high-output cutter• Allows you to get the glass output you need with fewer strands of roving

• Fewer strands of roving means less chance of tangling, easier handling and more uptime

• Up to 40% lighter than competition for better chopping control

External anvil adjustment • Lets you adjust anvil tension to correct cut variations due to anvil and blade wear

• Simply unlock thumb lever, adjust tension screw and resume spraying

• No disassembly, no tools required – results in more uptime

Speed control • Lets you adjust glass output on the fly

• No tools required

Tool-less blade design for more uptime• No tools required – easy to change blades in seconds

• Ability to quickly swap preloaded cutter assembly on the production line resulting in more uptime

• Magnetic cutter assembly snaps and holds blades in place during change out to reduce nicks and cuts

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Lightweight design

• Up to 44% lighter than the competition for better spraying control

Unique needle clamp design

• Designed to retain the factory adjustment

• Eliminates need to adjust needle setting after routine service

Quick-disconnect front end

• Easy shutdown procedures – simply place front end in solvent overnight

• Increases production time, reduces clean-up time

• After cleaning front end, the gun can be set aside for the next shift

Air Assist Containment (AAC®)

• More material on the part, less on the floor – saves material costs

• Promotes a healthier work environment due to less overspray

• Standard on all RS guns

Ergonomic handle

• Less operator fatigue means consistent quality parts throughout the shift

Easy maintenance

• Whole gun may be placed in solvent

• O-rings and seals are solvent-resistant

• Virtually eliminates downtime for unscheduled maintenance

High-pressure swivel

• Allows for easy gun maneuverability

• Provides more control when spraying in tight areas

How to change a Graco cutter blade

Remove cutter head Replace used blades

Graco RS Gel Coat Gun

Graco RS Chop Guns and Graco RS Gel Coat Guns are both available in internal and external mix models

Both Graco RS Chop and RS Gel Coat Guns offer:

Built to spray longer and improve uptime

Return cutter head to gun assembly

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NO

YES

When you buy a drum of resin, you pay for every drop of material. It makes good economic sense to put as many of those drops as possible on the mold.

Air Assist Containment (AAC) technology wraps the spray pattern in a containment shield of air – preventing atomized droplets from escaping the spray pattern. Droplets that escape and end up on the floor, wall or employee’s clothing are a waste of money.

AAC creates a spray pattern where the droplets travel to the mold at very low pressure. The low speed or “particle velocity” creates very little turbulence or disturbance in the liquid when the droplet makes contact with the mold. Competitive spray guns with higher “particle velocity” create a great deal of turbulence when the droplets impact the mold. Turbulence creates air entrapment which results in porosity. AAC spraying dramatically reduces the chances of air entrapment and porosity.

Air Assist Containment

Advanced technology to control and contain your spray pattern

Resin

External mix technology shown in example

Catalyst

Traditional Air Assist Containment:BEFORE introduction of catalyst

Resin

Catalyst

Graco’s Air Assist Containment: AFTER introduction of catalyst

Atomized droplets are kept or “contained” in the spray pattern

Some atomized droplets escape the spray pattern

• All Graco RS guns feature the patented

AAC technology

• Reduces material waste – which results

in more molds per drum of material

• Precise catalyst delivery and reduced particle

velocity assure the highest quality finish

• Less overspray means a healthier

work area for employees

AAC improves your profit picture

Technical SpecificationsTechnical SpecificationsROI Calculator

Calculate your return on your investment

If it takes longer than a few minutes to switch out the blades on your current chop gun, then you need a Graco RS Chop Gun. You’ll discover that the Graco RS Chop Gun pays for itself with saved labor costs and improved production uptime. Here’s how:

Easy, convenient blade change-out for improved production uptime

The cutter assembly in the Graco RS Chop Gun adds a whole new level of convenience and speed to the production line. Blades can be switched out in under a minute, right on the production line. No more stopping production to switch out guns. No more taking the gun to the workbench. Instead, blades can be quickly switched out on the production line. The Graco RS Gun significantly reduces downtime due to blade maintenance.

No tools required

The cover to Graco’s cutter assembly is easy to remove and doesn’t require any tools. Neither do the blades.

Fewer cuts

Magnetic cutter head assembly snaps and holds blades in place during change out to prevent cuts. With Graco’s cutter head assembly, it’s much quicker and safer to perform routine blade changes.

Reduced labor costs

Some shops have a specialized gun maintenance person whose sole job is to switch blades in chop guns. Because of the Graco RS Gun’s simple, innovative design, this is no longer necessary.

Stop and think: what’s the real cost and time spent at your plant to change out the blades on your current chop gun? Add it up: stopping the production line, getting the tools to remove the cover and wheel, taking the cutter to the bench, removing blades…it all adds up.

Labor savings alone on the Graco RS Gun will provide a strong return on investment.

Lightning-fast blade changes – more uptime

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Minimum Air Flow (at 100 psi) Internal Mix Gel .................................................................................................................12.5 scfm (0.354 meters3 per minute)

Internal Mix Chop ............................................................................................................. 2.25 scfm (0.064 meters3 per minute)

External Mix ..........................................................................................................................2.0 scfm (0.06 meters3 per minute)

Cutter: ................................................................................................................................16.5 scfm (0.467 meters3 per minute)

Maximum Air Pressure .......................................................................................................................... 125 psi (8.7 bar, 0.87 MPa)

Weight Internal Mix Gel: ................................................................................................................................................... 2.32 lb (1.05 kg)

Internal Mix Chop ................................................................................................................................................ 2.46 lb (1.12 kg)

External Mix Gel .................................................................................................................................................. 2.08 lb (0.94 kg)

External Mix Chop ............................................................................................................................................... 2.33 lb (1.04 kg)

Cutter ................................................................................................................................................................... 2.00 lb (0.91 kg)

Manual (Guns and Cutter) ......................................................................................................................................................3A0232

Technical Specifications

CST215CST415CST217CST417CST517CST219CST419CST519CST221CST421CST521

CST223CST423CST523CST427CST527CST231CST431CST531CST235CST435CST535

CST343CST443CST543CST351CST451CST551CST651CST461CST561CST661CST471

Airless Composite Spray Tips

How to read a composite spray tip number

EXAMPLE C S T 5 2 1

4TH DIGIT = pattern width code. Double the number to get

pattern width at 12 inches.

In this case, 5 equals a 10-inch spray pattern width at a 12-inch spraying distance.*

CST = Composite Spray Tip

LAST TWO DIGITS = Orifice size.

In this case, 21 is equivalent

to a .021 diameter orifice.

EXAMPLE C S T S 7 5

4TH DIGIT = S for stainless steel or T for

tool steel

5TH DIGIT = Spray pattern width code.

Double the number to get pattern width at

18 inches.

In this case, 7 equals a 14-inch pattern

width at an 18-inch spraying distance.*

CST = Composite Spray Tip

6TH DIGIT = Orifice size code.

Number roughly matches the diameter of the angled hole size.

In this case, 5 is equivalent to a

.052-inch diameter angled hole.

How to read an impingement tip part number

CSTS42CSTS73CSTS34CSTS44CSTS54

CSTS64CSTS74CSTS84CSTS55CSTS65

CSTS75CSTS56CSTS66CSTS57CSTT57

Impingement Composite Spray Tips

* Pattern size will vary depending on changes in pressure, viscosity and temperature.

Part Number

Part Number

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Guns 258853 Gel coat gun, internal mix with CST521 tip

258840 Gel coat gun, external mix with CST521 tip258854 Chop gun, internal mix with CST443 tip, without cutter258852 Chop gun, external mix with CST443 tip, without cutter258970 External mix chop gun with CST443 tip, with cutter 258971 Internal mix chop gun with CST443 tip, with cutter 24E512 Cutter assembly24R482 Cutter Head Assembly24R6060 100-Pack of Cutter Blades257754 Hose adapter kit

Gun Repair Kits 24E415 Solvent AAC assembly fitting kit24E416 Needle clamp assembly kit24E417 Complete needle assembly24E418 Needle repair kit24E419 Needle AAC kit 24E420 Catalyst Seat Kit24E421 Resin Seat Kit24E422 Cutter adapter kit 24E423 Catalyst check valve24E424 Check valve housing kit 24E425 Trigger air valve kit24E428 Seat seal, 6-pack24E435 Tip seal kit, 6-pack24E436 Needle assembly kit, 6-pack 24E443 Front head internal check valve24E444 Internal spring check valve kit24E445 Internal mixer kit24E446 Front head external check valve kit24E447 Front head external check valve repair kit

Head Assemblies 24E426 Horizontal external mix front head kit 24E427 Vertical external mix front head kit 24E442 Horizontal/vertical internal mix front head kit

Ordering Information

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ABOUT GRACO

GRACO LOCATIONS

SALES/DISTRIBUTION/

SERVICE

Graco Ohio800-746-1334

Fax 330-966-3006

Founded in 1926, Graco is a world leader in fluid handling systems and components. Graco products move, measure, control, dispense and apply a wide range of fluids and viscous materials used in vehicle lubrication, commercial and industrial settings.

The company’s success is based on its unwavering commitment to technical excellence, world-class manufacturing and unparalleled customer service. Working closely with qualified distributors, Graco offers systems, products and technology that set the quality standard in a wide range of fluid handling solutions. Graco provides equipment for spray finishing, protective coating, paint circulation, lubrication, and dispensing sealants and adhesives, along with power application equipment for the contractor industry. Graco’s ongoing investment in fluid management and control will continue to provide innovative solutions to a diverse global market.

Graco Inc. is registered to I.S. EN ISO 9001

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AMERICASMINNESOTAWorldwide HeadquartersGraco Inc.88-11th Avenue N.E.Minneapolis, MN 55413

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Call today for product information or to request a demonstration.

800-746-1334 or visit us at www.graco.com.

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©2018 Graco Inc. 340712 Rev. B 9/21 All written and visual data contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. All other brand names or marks are used for identification purposes and are trademarks of their respective owners.

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